Image sizes for Instagram

Since 2015 you can upload both horizontal and vertical photos to Instagram, as well as the original square, however most users tend to stick to the square format. You may want to test the sizes yourself and see what your followers engage with.

Instagram square photos

Square images are still the most dominant shape and symbol of Instagram.

• Aspect ratio of 1:1
• The optimal size for square posts is 1080px x 1080px

Instagram horizontal photos (landscape)

• Aspect ratio of 1.91:1
• The optimal size for square posts is 1080px x 608px

Instagram vertical photos (portrait)

• Aspect ratio of 4:5
• The optimal size for square posts is 1080px x 1350px